00001 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #ifndef MLN_FUN_ACCESS_MEAN_HH 00027 # define MLN_FUN_ACCESS_MEAN_HH 00028 00029 # include <mln/fun/unary.hh> 00030 # include <mln/core/concept/accumulator.hh> 00031 00032 00033 namespace mln 00034 { 00035 00036 namespace fun 00037 { 00038 00039 namespace access 00040 { 00041 00042 struct mean : unary<mean> 00043 { 00044 }; 00045 00046 namespace internal 00047 { 00048 00049 template <typename T> 00050 struct method_mean 00051 { 00052 typedef method_mean ret; 00053 00054 typedef typename T::mean_t result; 00055 typedef T argument; 00056 00057 static result read(const argument& x) 00058 { 00059 return x.mean(); 00060 } 00061 }; 00062 00063 } 00064 00065 } // end of namespace mln::access 00066 00067 } // end of namespace mln 00068 00069 00070 namespace trait 00071 { 00072 00073 namespace next 00074 { 00075 00076 template <typename A> 00077 struct set_unary_< fun::access::mean, 00078 Accumulator, A > : fun::access::internal::method_mean<A> 00079 { 00080 }; 00081 00082 } // end of namespace mln::trait::next 00083 00084 } // end of namespace mln::trait 00085 00086 } // end of namespace mln 00087 00088 00089 #endif // ! MLN_FUN_ACCESS_MEAN_HH
1.7.1